Overcurrent and earth fault protection

  • A. Wright
  • C. Christopoulos


Fuses are a very satisfactory form of protection for the lower voltage and current sections of power networks because their operating time/current characteristics are similar in form to the withstand time/current characteristics of the circuits they protect. Their use enables circuits to be kept in service until times when faulted or overloaded parts of a network must be disconnected to ensure that healthy equipment does not suffer consequential damage.


Current Transformer Fault Current Earth Fault Correct Discrimination Load Circuit 
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Copyright information

© A. Wright and C. Christopoulos 1993

Authors and Affiliations

  • A. Wright
    • 1
  • C. Christopoulos
    • 1
  1. 1.University of NottinghamNottinghamUK

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